1、function show() public view returns(string memory) { return word;}这里的string后要添加memory2、Warning: SPDX license identifier not provided in source file需要在文件头添加声明License：// SPDX-License-Identifier: MIT学习链接：Solidity语言https://zhuanlan.zhihu.com/p/497589204智能合约(smart contract)技术的相关资料https://github.com/Fankouzu/smart-contract https://github.com/KevinJay/awesome-smart-contractweb3、solidityhttps://me.tryblockchain.org/ ...